It's already possible, but metadata is the wrong tool. Wrap all return
values that "might" have multiple values in a vector, and return/bind
as many elements as you want. Add macros to make it less ugly, stir
awhile, and you have multiple values.
Using metadata for this purpose would have real pro
Would it be possible to create something like CL's multiple values this way?
2011/3/25 James Reeves :
> On 25 March 2011 10:41, msappler wrote:
>> Never used metadata until now.
>>
>> I had an insight yesterday that I want to share with you:
>>
>> http://resatori.com/metadata-insight
>
> In my vi
On Fri, Mar 25, 2011 at 11:48 PM, James Reeves wrote:
>
> (defprotocol Identifiable
>(id [self] "Return an object's unique id"))
>
> (deftype DBRef [db-id data]
>Identifiable
>(id [_] db-id)
>clojure.lang.IDeref
>(deref [_] data))
>
> (defn db-ref [id data]
>(DBRef. id d
On 25 March 2011 10:41, msappler wrote:
> Never used metadata until now.
>
> I had an insight yesterday that I want to share with you:
>
> http://resatori.com/metadata-insight
In my view, it depends whether your :id key is a surrogate key or a natural key.
Object metadata should not affect objec
